For the long term, I would love to have an "Export as..." in the world menu of a regular (trunk) image. :-)

Best,
Marcel
Am 15.02.2018 03:13:39 schrieb David T. Lewis <lewis at mail.msen.com>:
On Wed, Feb 14, 2018 at 07:57:15AM +0100, Marcel Taeumel wrote:
> Thank you, Dave, for supporting the V3 format!

It is a long way from perfect, but with some patience and manual
intervention, the image updates can be done all the way from Squeak 4.6
to the current level of trunk.

Attached is a screen shot to show the result.

>
> We should also put more effort into a better SystemTracer to be able to convert between image formats (including 64/32 bits) back and forth -- even if there are some limitations. Think about converting between JPG and PNG, which is sometimes quite convenient to have. :-)
>


Yes this would be nice to have. Using a VMMaker image to do tracing is
a perfectly reasonable approach, especially now that we have fast machines
and unlimite memory. But it would also be nice to have a lighter-weight
tool, and possibly one that could handle a wider range of conversion
targets. If it were possible to trace back and forth between 32-bit spur
and 64-bit spur, that would be particularly useful.

I have not really looked at it, but I suspect that Eliot's recent work
to handle legacy V3 image segments may be useful here.

Dave



> Best,
> Marcel
> Am 14.02.2018 05:36:51 schrieb David T. Lewis :
> This project provides an update stream that, starting with a Squeak 4.6 release
> image, produces an up-to-date trunk level image that can be run with either a
> Cog/Stack or classic interpreter VM.
>
> The resulting image uses the traditional V3 object memory format, and therefore
> does not support Spur enhancements (immediate characters and floats, enhanced
> memory management, etc). It does however run most Squeak functionality exactly
> like Squeak trunk on Spur.
>
> I put an update on the swiki here: http://wiki.squeak.org/squeak/6592
>
> The trunk V3 image may be useful for performance comparisons related to
> V3/Spur/Cog/Sista variants.
>
> Note, this is a long-term update for a project that I did not intend to keep
> alive this long. I had originally intended to maintain the V3 update stream
> or one Squeak release cycle, but it has turned out to be useful for keeping
> the classic interpreter VM updated with respect to VM primitives, and has
> been something of a learning experience for me to keep up with the Context
> refactorings, Compiler and Kernel changes, and Sista bytecodes. So for better
> or worse, the V3 trunk stream is still alive, and I figured that it is worth
> a mention on the squeak-dev list :-)
>
> Dave
>
>

>


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